By 1800, the Machin family was involved in pen and pocket knife manufacture in Pond Street.  In 1797, William Machin was listed as a pen and pocket knife cutler at 43 Pond Street, using the trade mark ‘GLOOMY’.  Between 1811 and the 1830s, William Machin was a pen knife maker in Pond Street (and operator of the Cutlers’ Arms beer house in that road).  William Machin – presumably this cutler – was buried in St Paul’s churchyard on 18 July 1839, aged 87.  James Machin (presumably his descendant) was listed as a pen and pocket knife maker in Pond Street after 1837.  In 1851, he was enumerated in the Census in Granville Street as a 54-year-old cutler, living with his wife Elizabeth.  James Machin died on 15 March 1867 at Granville Street, aged 70.  His burial was at St Mary’s churchyard.